If the second in each of these pairs of allocations fails, then the
first one will not be freed in the error route out.

Found by a static code analysis tool.
Signed-off-by: NPhil Carmody <ext-phil.2.carmody@nokia.com>
Acked-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1260448177-28448-1-git-send-email-ext-phil.2.carmody@nokia.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>